Semester 2010B Time Distribution

Gemini North: Time Availability and Distribution

A minimum of 85% of the time will be
available for science use on Gemini North in 2010B. This amounts to 156 nights and includes 12 nights for
GNIRS science verification (SV) and 1.5 nights for demonstration science with the upgraded GMOS-N.
The remaining time will be used for observatory maintenance tasks, and the planned
commissioning of
GNIRS and the new CCDs for
GMOS-N; any unused
engineering time will be returned to science. Note that historically around 5% of each
semester's science time is used to complete highly ranked programs from the previous two
semesters to which the ITAC granted rollover status.
The number of hours allocated to each partner in 2010B is given in the following table.

Partner

Estimated Hours Available

US

608

UK

263

Canada

143

Australia

59

Argentina

22

Brazil

60

Univ. of Hawaii (host)

157

Gemini Staff

117

Total

1429 (=143n)

Gemini South: Time Availability and Distribution Revised May 6 2010

A minimum of 81% of the time will be
available for science use on Gemini South in 2010B. This amounts to 149 nights,
and includes 18 nights of NICI
campaign science.
The remaining time will be used for observatory maintenance tasks (including mirror coating), and
Flamingos-2 and MCAO commissioning activities.
Any unused engineering time will be returned to science.
Note that historically around 5% of each
semester's science time is used to complete highly ranked programs from the previous two
semesters to which the ITAC granted rollover status.
The number of hours allocated to each partner in 2010B is given in the following table.

Partner

Estimated Hours Available

US

563

UK

240

Canada

129

Australia

65

Argentina

24

Brazil

63

Chile
(host)

117

Gemini
Staff

111

Total

1312
(=131n)

Time Adjustments

To
maintain overall balance amongst the partnership, the values shown
above for both Gemini North and South have been
adjusted from the nominal partner shares as a result of actual time
charged through 2009B. The time allocations also include a purchase by Brazil of 35 hours of UK time at each telescope. The values shown in the tables above were recommended
by the Operations Working Group in February 2010.
The number of nights is approximated by int(hours/10).
The values shown for Gemini South were revised on May 6 2010 due to a reduction in the estimated engineering requirements for 10B.